Hemoglobin E-thalassemia: a study of 16 cases.
16 cases of hemoglobin E-thalassemia are reported. The interaction of thalassemia with Hb E produced a varying severity of E-thalassemia. 10 cases had a thalassemia intermedia type of clinical picture while 6 had a more severe disorder requiring regular transfusions from early childhood. 14 patients were producing Hb-A and therefore had beta+ type thalassemia whereas 1 case had no Hb-A because of beta 0 type thalassemia. This is in contrast to a much higher frequency of beta 0 thalassemia in cases reported from South-East Asia. Family studies in 1 patient revealed the interaction with delta-beta thalassemia, a situation which is rare. Mating of an Hb E-thalassemia subject with heterozygous beta thalassemia resulted in an offspring with severe homozygous thalassemia.
D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006446:Hemoglobin E / Q000032:analysis; D006455:Hemoglobins, Abnormal / Q000032:analysis; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D008297:Male; D013789:Thalassemia / Q000175:diagnosis / Q000235:genetics*
D006455:Hemoglobins, Abnormal; D006446:Hemoglobin E